diff options
Diffstat (limited to 'src/main/java/com/lowagie/text/pdf/PRStream.java')
| -rw-r--r-- | src/main/java/com/lowagie/text/pdf/PRStream.java | 229 |
1 files changed, 0 insertions, 229 deletions
diff --git a/src/main/java/com/lowagie/text/pdf/PRStream.java b/src/main/java/com/lowagie/text/pdf/PRStream.java deleted file mode 100644 index 272a45f..0000000 --- a/src/main/java/com/lowagie/text/pdf/PRStream.java +++ /dev/null @@ -1,229 +0,0 @@ -/*
- * $Id: PRStream.java,v 1.46 2005/05/04 14:32:34 blowagie Exp $
- * $Name: $
- *
- * Copyright 2001, 2002 by Paulo Soares.
- *
- * The contents of this file are subject to the Mozilla Public License Version 1.1
- * (the "License"); you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at http://www.mozilla.org/MPL/
- *
- * Software distributed under the License is distributed on an "AS IS" basis,
- * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
- * for the specific language governing rights and limitations under the License.
- *
- * The Original Code is 'iText, a free JAVA-PDF library'.
- *
- * The Initial Developer of the Original Code is Bruno Lowagie. Portions created by
- * the Initial Developer are Copyright (C) 1999, 2000, 2001, 2002 by Bruno Lowagie.
- * All Rights Reserved.
- * Co-Developer of the code is Paulo Soares. Portions created by the Co-Developer
- * are Copyright (C) 2000, 2001, 2002 by Paulo Soares. All Rights Reserved.
- *
- * Contributor(s): all the names of the contributors are added in the source code
- * where applicable.
- *
- * Alternatively, the contents of this file may be used under the terms of the
- * LGPL license (the "GNU LIBRARY GENERAL PUBLIC LICENSE"), in which case the
- * provisions of LGPL are applicable instead of those above. If you wish to
- * allow use of your version of this file only under the terms of the LGPL
- * License and not to allow others to use your version of this file under
- * the MPL, indicate your decision by deleting the provisions above and
- * replace them with the notice and other provisions required by the LGPL.
- * If you do not delete the provisions above, a recipient may use your version
- * of this file under either the MPL or the GNU LIBRARY GENERAL PUBLIC LICENSE.
- *
- * This library is free software; you can redistribute it and/or modify it
- * under the terms of the MPL as stated above or under the terms of the GNU
- * Library General Public License as published by the Free Software Foundation;
- * either version 2 of the License, or any later version.
- *
- * This library is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
- * FOR A PARTICULAR PURPOSE. See the GNU Library general Public License for more
- * details.
- *
- * If you didn't download this code from the following link, you should check if
- * you aren't using an obsolete version:
- * http://www.lowagie.com/iText/
- */
-
-package com.lowagie.text.pdf;
-
-import java.io.*;
-import com.lowagie.text.ExceptionConverter;
-import java.util.zip.DeflaterOutputStream;
-import com.lowagie.text.Document;
-import java.io.OutputStream;
-import java.io.IOException;
-
-public class PRStream extends PdfStream {
-
- protected PdfReader reader;
- protected int offset;
- protected int length;
-
- //added by ujihara for decryption
- protected int objNum = 0;
- protected int objGen = 0;
-
- public PRStream(PRStream stream, PdfDictionary newDic) {
- reader = stream.reader;
- offset = stream.offset;
- length = stream.length;
- compressed = stream.compressed;
- streamBytes = stream.streamBytes;
- bytes = stream.bytes;
- objNum = stream.objNum;
- objGen = stream.objGen;
- if (newDic != null)
- putAll(newDic);
- else
- hashMap.putAll(stream.hashMap);
- }
-
- public PRStream(PRStream stream, PdfDictionary newDic, PdfReader reader) {
- this(stream, newDic);
- this.reader = reader;
- }
-
- public PRStream(PdfReader reader, int offset) {
- this.reader = reader;
- this.offset = offset;
- }
-
- public PRStream(PdfReader reader, byte conts[]) {
- this.reader = reader;
- this.offset = -1;
- if (Document.compress) {
- try {
- ByteArrayOutputStream stream = new ByteArrayOutputStream();
- DeflaterOutputStream zip = new DeflaterOutputStream(stream);
- zip.write(conts);
- zip.close();
- bytes = stream.toByteArray();
- }
- catch (IOException ioe) {
- throw new ExceptionConverter(ioe);
- }
- put(PdfName.FILTER, PdfName.FLATEDECODE);
- }
- else
- bytes = conts;
- setLength(bytes.length);
- }
-
- /**Sets the data associated with the stream
- * @param data raw data, decrypted and uncompressed.
- */
- public void setData(byte[] data) {
- remove(PdfName.FILTER);
- this.offset = -1;
- if (Document.compress) {
- try {
- ByteArrayOutputStream stream = new ByteArrayOutputStream();
- DeflaterOutputStream zip = new DeflaterOutputStream(stream);
- zip.write(data);
- zip.close();
- bytes = stream.toByteArray();
- }
- catch (IOException ioe) {
- throw new ExceptionConverter(ioe);
- }
- put(PdfName.FILTER, PdfName.FLATEDECODE);
- }
- else
- bytes = data;
- setLength(bytes.length);
- }
-
- public void setLength(int length) {
- this.length = length;
- put(PdfName.LENGTH, new PdfNumber(length));
- }
-
- public int getOffset() {
- return offset;
- }
-
- public int getLength() {
- return length;
- }
-
- public PdfReader getReader() {
- return reader;
- }
-
- public byte[] getBytes() {
- return bytes;
- }
-
- public void setObjNum(int objNum, int objGen) {
- this.objNum = objNum;
- this.objGen = objGen;
- }
-
- int getObjNum() {
- return objNum;
- }
-
- int getObjGen() {
- return objGen;
- }
-
- public void toPdf(PdfWriter writer, OutputStream os) throws IOException {
- superToPdf(writer, os);
- os.write(STARTSTREAM);
- if (length > 0) {
- PdfEncryption crypto = null;
- if (writer != null)
- crypto = writer.getEncryption();
- if (offset < 0) {
- if (crypto == null)
- os.write(bytes);
- else {
- crypto.prepareKey();
- byte buf[] = new byte[length];
- System.arraycopy(bytes, 0, buf, 0, length);
- crypto.encryptRC4(buf);
- os.write(buf);
- }
- }
- else {
- byte buf[] = new byte[Math.min(length, 4092)];
- RandomAccessFileOrArray file = writer.getReaderFile(reader);
- boolean isOpen = file.isOpen();
- try {
- file.seek(offset);
- int size = length;
-
- //added by ujihara for decryption
- PdfEncryption decrypt = reader.getDecrypt();
- if (decrypt != null) {
- decrypt.setHashKey(objNum, objGen);
- decrypt.prepareKey();
- }
-
- if (crypto != null)
- crypto.prepareKey();
- while (size > 0) {
- int r = file.read(buf, 0, Math.min(size, buf.length));
- size -= r;
-
- if (decrypt != null)
- decrypt.encryptRC4(buf, 0, r); //added by ujihara for decryption
-
- if (crypto != null)
- crypto.encryptRC4(buf, 0, r);
- os.write(buf, 0, r);
- }
- }
- finally {
- if (!isOpen)
- try{file.close();}catch(Exception e){}
- }
- }
- }
- os.write(ENDSTREAM);
- }
-}
\ No newline at end of file |